perf: improve node eligibility branching on worker choice strategies

[poolifier.git] / src / pools / selection-strategies / least-elu-worker-choice-strategy.ts

diff --git a/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts b/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
index 57e805e18b5b5fb9f25e3b9170fb3baf9e84fa49..938d2072e998eed7ac26deeb225662ad884217b8 100644 (file)
--- a/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
@@ -56,27 +56,33 @@ export class LeastEluWorkerChoiceStrategy<
   }
 
   /** @inheritDoc */
-  public choose (): number {
+  public choose (): number | undefined {
+    this.nextWorkerNodeKey = this.leastEluNextWorkerNodeKey()
+    return this.nextWorkerNodeKey
+  }
+
+  /** @inheritDoc */
+  public remove (): boolean {
+    return true
+  }
+
+  private leastEluNextWorkerNodeKey (): number | undefined {
     let minWorkerElu = Infinity
+    let chosenWorkerNodeKey: number | undefined
     for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
+      if (!this.isWorkerNodeEligible(workerNodeKey)) {
+        continue
+      }
       const workerUsage = workerNode.usage
       const workerElu = workerUsage.elu?.active?.aggregate ?? 0
-      if (this.workerNodeReady(workerNodeKey) && workerElu === 0) {
-        this.nextWorkerNodeId = workerNodeKey
+      if (workerElu === 0) {
+        chosenWorkerNodeKey = workerNodeKey
         break
-      } else if (
-        this.workerNodeReady(workerNodeKey) &&
-        workerElu < minWorkerElu
-      ) {
+      } else if (workerElu < minWorkerElu) {
         minWorkerElu = workerElu
-        this.nextWorkerNodeId = workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
       }
     }
-    return this.nextWorkerNodeId
-  }
-
-  /** @inheritDoc */
-  public remove (): boolean {
-    return true
+    return chosenWorkerNodeKey
   }
 }